coralloid

== English == === Etymology === From coral + -oid. === Adjective === coralloid (not comparable) Having the shape or form of coral. ==== Synonyms ==== coralloidal ==== Derived terms ==== === Noun === coralloid (plural coralloids) A small node of calcite, aragonite or gypsum that forms on surfaces in caves, especially limestone caves. ==== Synonyms ==== cave popcorn ==== Hypernyms ==== speleothem